Domesticated Animals

Native
Americans domesticated dogs

All
NA dogs were wiped out or interbred with European dogs

Genetic material found in mitochondria, the organelles that generate energy for the cell.mtDNAThe order of nucleotides in a DNA or RNA molecule, or the order of amino acids in a protein molecule.sequences from remains of pre-Columbian NA dogs (Alaska,Mexico, Peru, and
Bolivia) show they originated from
Asian dogs who accompanied late Pleistocene humans across
the Bering Strait

Native Americans had domesticated dogs in their settlements. Nearly all of
these dogs were wiped out or interbred with European dogs, which were introduced
into the Americas following the arrival of Columbus in 1492. Although no
indigenous American dogs exist now, bones from pre-Columbian sites have been
studied to examine the genetics of those animals.

Scientists extracted Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA from the bones of 37 dog specimens from
archaeological sites in Mexico, Peru, and Bolivia, and 11 dog remains
from Alaska, all of which were deposited before the arrival of Columbus in the
New World.1Of or referring to the mitochondria, the organelles that generate energy for the cell.MitochondrialDeoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNAThe order of nucleotides in a DNA or RNA molecule, or the order of amino acids in a protein molecule.sequences isolated from those ancient dog remains
from Latin America and Alaska showed that Native American dogs originated from
multiple Old World lineages of dogs that accompanied late Pleistocene humans
across the Bering Strait.

References

Leonard JA, Wayne RK, Wheeler J, Valadez R, Guillen S, Vila C. 2002. Ancient
Deoxyribonucleic acid: the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms.DNA evidence for Old World origin of New World dogs. Science
298:1540-1542.